The internal components for o2 are installed, however, o2 sensors and their mounting plate are not included. See images
The sensor module has been tested using working o2 sensors and has been confirmed functional. It is ready to accept new o2 sensors.
The internal components for humidity ARE NOT installed so humidity is NOT currently available on this machine. See images.
The humidity function has been tested using internal components from another Isolette C2000 and humidity worked appropriately. The internal components can be purchased elsewhere and installed in order to use humidity.